Trewhiddle

Trewhiddle holiday estate near St. Austell is no longer a campsite.

www.trewhiddle.co.uk

They are now building 65 luxury Villas and central spa and restaurant here.

Still a great area to visit though.

There are some very nice coves and harbours to visit and take a look around, on the St Austell side, Charlestown with its sailing ships and shipwreck centre is nice, Mevagissey is good for the shops, and Fowey as well.
Cornwall Gold centre is a good free place to look around with things for the kids to do, like panning for gold or gems, pottery making, also the Eden project is not to far away, costly to get in but worth the look.

Par beach which is not to far away accepts dogs and was not too bad if you don't mind the seaweed, Newquay is only about 16 miles across country where the better beach's are.
We spent some of our time at Watergate Bay just outside Newquay, Nice wide and long clean beach, plenty of space for all, Dogs are allowed on this beach and it has some nice shallow surf for the kids.
Porth beach is another good beach for families just outside of Newquay it is a long narrow beach when the tide is out.(no dogs)